neighbors questioned why officers didn't use a taser. police say because the man was coming after his wife, officers used an appropriate level of force. >>> ktvu joined other businesses today to present a donation to the widow of a fallen highway patrol officer. karen young strum accepted a check for $26,000 at a ceremony in walnut kreevenlth the donors included chevron and ktvu/kicu represent by our general manager. it was two months ago when officer kenyon jung trum was shot and killed. today's event was organized by the charity group police and fire fallen he rows. >>> a gas leak in san francisco prompted evacuation this morning at pear 15. investigators say construction crew struck a gas line about 10:00 in the morning. fire officials say pier 15 was evacuated. the leak was capped in about 45 minutes. the evacuation was lift and had streets were reopened around noon. >>> a busy intersection in san francisco's north beach was water logged briefly today. the pse says contractor struck a water main valve. ktvu's news chopper 2 was above